DESCRIPTION OF THE SPECIES. 315 



cross the second posterior cell, and the last of them is a little broader than 

 the preceding one and generally connected in the vicinity of its root with 

 the remaining brownish-black picture by a brownish-black bridge, which 

 cuts off the end of the hyaline indented interval in the shape of a drop. 

 The hyaline drops are of a considerable size, but not very numerous ; two 

 are placed between the third and fourth veins, the one before, the other 

 less far behind the small crossvein ; in. the same way there are only two 

 drops in the discal cell, placed upon its posterior side, below the small 

 crossvein ; the third posterior cell contains a drop near its extreme basis 

 and five considerable drops upon its distal half ; finally four drops are 

 situated in the posterior corner of the wing, which, however, are less con- 

 spicuous on account of the less dark coloring surrounding them. The 

 first and second longitudinal veins are somewhat more distant from the 

 anterior margin than usual ; the second and third are strongly divergent 

 towards the end ; a lesser divergency exists between the third and fourth ; 

 both crossveins are perpendicular and straight ; the small one is twice as 

 far from the basis as from the end of the discal cell ; the third vein is 

 distinctly bristly ; there is no distinct concavity in the first posterior cell, 

 and the spot where it occurs in some species is not darker than the sur- 

 roundings. 



Hah. Brazil (coll. v. Winthem). 



55. T. melanogastra Lw. % 9. (Tab. X, f. 24.)— Luteo-cinerea, 

 abdomine nigro, capite pedibusque fiavis ; setae scutelli duse; alarum 

 pictura nigra, in apice radiata, prope marginem posticum paulo confer- 

 tius, in disco rarissime guttata, gutta cellulse posterioris prima? unica ; 

 vena longitudinalis tertia non setosa. 



Yellowish-gray, abdomen black, head and feet yellow ; scutellum with 

 two bristles ; the black picture of the wings with rays at the tip, more 

 densely guttate in the vicinity of the posterior margin, very sparsely 

 in the middle, and with a single drop in the first posterior cell ; the third 

 longitudinal vein is not bristly. Long. corp. % 0.09, $ cum terebra 

 0.12; long. al. 0.12. 



Syn. Trypeta melanogastra Loew, Monographs, etc., I, p. 90. Tab. II, f. 24. 



Bab. Cuba (Poey). 



Observation 1. — Two misprints must be corrected in the 

 description in the first volume of these Monographs : the figure 

 of the wing is quoted fig. 23, instead of 24, and on page 91, line 

 19, "fifth" must be read, instead of "first." Moreover, it must 

 be added that the figure was drawn from a female specimen. 

 The relation of T. melanogastra to T. mexicana Wied. will be 

 explained under the head of the latter. 



Observation 2. — T. melanogastra belongs, together with the 



